Dyfyniad APA

Wachter. Kenneth W. (2014). Essential demographic methods. Harvard University Press.

Dyfyniad Arddull Chicago

Wachter. Kenneth W. Essential Demographic Methods. London: Harvard University Press, 2014.

Dyfyniad MLA

Wachter. Kenneth W. Essential Demographic Methods. Harvard University Press, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.